The document discusses the differences between active and passive voice in sentences. In active voice, the subject performs the action, while in passive voice the object becomes the subject and the actor is either mentioned later or left out. The document provides examples and recommends using active voice when the actor is important, or when wanting to be direct, while passive voice works when the actor does not need stating or for objective scientific writing. It includes practice exercises changing passive to active voice.

1. Active and Passive Voice
In the active voice, the subject of the sentence performs the action:
I aced the exam.
Subject/actor verb object/thing acted on
In the passive voice, the object of the action becomes the subject of the sentence, and
the actor appears in a prepositional phrase, or is absent from the sentence:
The exam was aced (by me).
Subject verb actor/object of prepositional phrase
► Use the active voice when the actor’s identity is important.
Active: The butler did it.
Passive: It was done by the butler.
The first sentence is stronger; it sounds like an accusation. The second sentence
is weaker; it sounds like the butler did nothing more sinister than a load of laundry.
► Use the active voice when you want to be direct and emphatic.
Active: Management expects the staff to follow the rules.
Passive: It is expected by Management that the rules will be followed by
the staff.
In this instance, the active voice delivers the message more effectively.
► Use the passive voice when you do not need to tell the reader who is acting.
Active: Ned will prosecute trespassers.
Passive: Trespassers will be prosecuted.
In this case, it is not necessary to say who will be doing the prosecuting. Fear of
being prosecuted, not fear of being prosecuted by Ned, will prevent most people
from trespassing.

2. ► Use the ‘objective’ passive for writing in disciplines such as the sciences.
Active: Dr. Cranium considered the drug to be a medical breakthrough,
but after he tested the drug further, he found that it had serious side
effects.
Passive: The drug was considered to be a medical breakthrough, but
after further testing, it was found to have serious side effects.
Writers in the sciences often use the passive voice when they want to sound objective. In the first
sentence, the active voice suggests that Dr. Cranium made an error in judgement. In the second
sentence, the passive voice delivers important information about the drug without implying
anything (either positive or negative) about Dr. Cranium.
Practice Exercise
Rewrite the following sentences by replacing passive verbs with active verbs, and by
adding a subject if necessary.
1. The building has been left by Elvis.
2. When I was prosecuted by Ned, I felt very foolish.
3. A superb dinner was prepared by the famous chef.
4. The dog was given a bath, and the cat was rescued from the tree.
5. The story of the albatross will be told many times by the ancient mariner.
6. The sentiments of the speaker were applauded.
7. It was proven by Atticus that the crime was not committed by the accused.
8. The site will be excavated as soon as permission is granted by the local
government.
Answers
1. Elvis has left the building.
2. When Ned prosecuted me, I felt very foolish.
3. The famous chef prepared a superb dinner.
4. Ben gave the dog a bath, and Jerry rescued the cat from the tree.
5. The ancient mariner will tell the story of the albatross many times.
6. The audience applauded the sentiments of the speaker.
7. Atticus proved that the accused did not commit the crime.
8. The archaeological team will excavate the site as soon as the local government grants
them permission to do so.